Wire-coiling machine.



No. 643,904. Patented Fab. 20, |900.

y J. LAUER.

WIRE Coll-ING MACHINE.

V (Applicstiqn lod June ,80, 1898.) (No Model.) 3 Sheets-Shut l.

Fia.

WJTWESSEES* [2v2/Ewa@ Patented Feb. 20, |900. J LAUER WIRE CDILING MACHINE.

(Applxcatxon filed June 80, 1898 (No Model.) 3 Shee`ts-Sheei 2.

[JA/VENTO@ WITNESSES .rn-4: Nonnls PETERS co. pHoro-uwe., WASHINGTQMD. c.

No. 643,904. Patented-Feb. 20, |900. J. LAUEB.

WIRE COILING MACHINE.

(Application iled Jupe 30, 189B.)

3 Sheets-Sheet 3.

WITNESS/T5S -NITED STATES PATENT QFFICE.

JOHN LAUER, OF DETROIT, MICHIGAN.

WIRE-COILING MACHINE.`

SPECIFICATION forming part of Letters Patent No. 643,904, dated February 20, 1900.

Application filed J une 30, 1 8 9 8.

To @ZZ whom, it r11/Ly concern,.-

Be it known that I, JOHN LAUER, a citizen of the United States, residing at Detroit, county of Vayne, State of Michigan, have invented a certain new and useful Improvement in lVire-.Coilin g Machines; and lrdeclare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specication.

This invention relates to wire-ceiling machines, and has for its object an improved machine adapted to produce a continuous coil of wire of an equal and even pitch.

In the drawings, Figure l is a plan of the machine. From this gure the central wireguide is removed. Fig. 2 is a side elevation of the machine as seen from the side of the machine which is at the lower side of the drawing in Fig. l. Fig. 3 is a side elevation of the opposite side of the machine. Figyet shows the die used forfforming the twist in the wire. Fig. 5 is a perspective showing the central wire-guide. This is the part which is taken away from Fig. l and which is shown in place in Fig. 2.

The machine consists, essentially, of feedrolls which force the wire forward, adie which gives to it a spiral twist, and the mechanism for moving the feed-rolls and the die. Most of the wheels shown in the machine are for the mere purpose of transmitting motion at proper rales of speed from the driving-wheel or band-wheel 2 to the feed-rolls d a2 a3 a4 and to the die which is located within the hollow axle of the wheel d. l

The entire machine is supported on a pillar A, at the summit of which there are bedplates B B' and a frame B2.

' There are four grooved driving-wheels arranged in pairs. Two of the driving-wheels a d2 are arranged vertically at that end of the machine at which the Wire enters. Two others of the driving-wheels a3 Care arranged vertically at the delivery end of the machine and just in front of a rotating die D. Still two others, d5 and a, are arranged horizontally between the two vertical sets of drivingrolls. Each of these drivin g-rolls is provided Serial No.684 ,'78'7. (No model.)

with a number of grooves in its periphery, and the grooves on each driving-roll are of different sizes to correspond with the several sizes of wire which may be worked in the machine; but on all the rolls the grooves are arranged so that the grooves of contiguous rolls correspond-that is, if on one roll the grooves are arranged to engage with three wires-say No. l2, No. 10, and No. 8-then the contiguous roll-grooves of the same character are arranged to engage exactly opposite, and if the machine is arranged to feed No. l2 wire it can be changed to feed No. 10 wire by shifting the rolls on their shafts by means of proper washers until the groove appropriate to feed No. l0 wire is in the line proper to feed the wire. A further shift will bring the No. t groove in proper place, or instead of shifting the rolls on their shafts they may be taken off and reversed, and the No. 8 groove will now come where the No. 12 groove came before the reversal, so that by changing either the position of the roll on its axis by means of washers or by reversing the roll on its axis that groove of each rollwhich is especially adapted to a particular size of wire may be used.

ln front of the first rolls d a2 is a wire-guide g, into and through which is led the wire under treatment. Between the first set of rolls and the horizontal set is a second wire-guide on a hanger h, and between the horizontal rolls and the last set is another guide, also on the hanger 7i. The hanger is held from the frame, on the top of which a branch extending from it rests, and the hanger is secured to the frame bya bolt passing through a slot h', so that it may be adjusted properly with reference to the wire. Steady-bolts h2 reach horizontally through the hanger part and bear against the frame. The drive-rolls are mounted on independent shafts and are geared together. The vertically-arranged rolls are each provided with pinions, the first of which is on the shaft d of the lower drive-wheel a4. The horizontal drive-rolls are driven through the intermediate mechanism of the crossshaft 6, the spur-gear on which meshes with a wheel on the shaft d. On the shaft 6 is a bevel-gear which meshes with a bevel-gear on the. vertical shaft of one of the horizontal IOO driving-rolls a5. Spur-gears on the two vertical shafts of a5 and a intermesh, causing their motion to be equal.

On the cross-shaft b of the driving-roll a3 is a sliding bevelgear l1', that intel-meshes with a bevel-gear on the shaft c of the wheel c', that drives the die-wheel d. The shaft c is mounted in abearing that is adjustable across the bed-plate B, so that the wheel c' may be taken off and another wheel of different number of teeth or different diameter placed on the shaft. This may be done by adjusting the bearing C on the bed-plate B and the bevel-wheel b ou the shaft b.

The shaft of the die-wheel d is hollow, and within it is held the die D, the shaft becoming the dieholder,which acts in conjunction with the die and gives to the wire that is driven through it the proper coil and the proper pitch. The die or core D is a short cylinder with a spiral groove around it, and this spiral groove at its receiving end widens and leads to the center of the cylinder. At the extreme end the bore of the die-holder is of about the size of the wire to be treated, and the bore is continued of this diameter for a short distance only, and is then enlarged to receive the die D, which is inserted from the delivery end and is held in place by set-screws d d2. The groove on the die extends spirally around it and has altogether about two turns, of which one turn is of the pitch which it is desired to produce in the spirally-coiled wire and the other or rst turn has a slightly-greater pitch.

The six rolls and the guides are suflicient to straighten and force through the die any wire of moderate size.

IVhen the machine is in proper adjustment, the die being properly proportioned to the wire and the rotation of the die being at the proper relative speed with reference to the feed, the wire itself does not turn on its axis and is not twisted, but simply forced into the spiral frame without being weakened by twisting it on its own axis. If, however, the feed is not properly adjusted with reference to the rotation of the die, there is a tendency to twist the wire, which either does twist or causes the bundle of wire to turn on the longitudinal axis of the straightened partof the wire; but with all parts properly adj usted and properly proportioned the wire goes through the throat ofthe die-holder directly at the center line of the die cylinder or core and is forced by the revolving die to assu me a spiral shape of proper pitch without injurious strain on any of the parts of the wire.

I have found experimentally that the results produced on a given size of wire depend on the relative feed or motion of the feed-rolls and motion of the spiral die D. That if the machine be set to produce satisfactory results with a wire of one size and a wire of another size be fed to it dillerent results from those expected will follow. If the relative speed of the die be too fast, the wire presses against the back of the groove around the spiral die. It the relative speed of the die be too slow, the wire presses against the front side of the die. lf the machine be arranged properly to coil a No. 10 wire and a No. l1 wire be fed to it, the pitch of the spiral of No. 1l wire will be greater than the pitch of the spiral of No. lO wire, although formed with the same die. Consequently to produce satisfactory results the gear-wheels which turn the die must he the proper size to give to the die the proper relative motion with reference to the feed-wheels and the die itself must be proper to the size of the wire to be treated. IVhile Ido not consider that the invention resides in the proportion of parts, I do consider that the satisfactory working of the machine does depend largely on such proper proportion.

l. In a machine for forming spiral wire, the combination with a die having a spiral groove adapted to form the wire to its own shape, formed therein, means for rotating said die, and a force-feed adapted to deliver the wire to said groove, substantially as and for the purpose described.

2. In a machine for coiling wire into aspiral, the combination of driving-rolls, means for imparting motion to them, a die having a spiral 4groove adapted to form the wire to its own shape, formed therein, said driving-rolls being adapted to deliver the wire to said groove, and means for rotating said die as the wire advances past said die, substantially as described.

3. In a machine for forming spiral wire, the combination of a force-feed, a rotating die arranged as the core of the spiral and means whereby the driving-gear of the rotating die may be changed, substantially as described.

4. In a machine for coiling wire, the combination of a spirally-grooved core and a hollow axle in which the core is held and means for rotating the core and axle together, substantially as described.

5. In a machine for coiling wire, the combination of a hollow holder, a spirally-grooved core adapted to be held in said holder, the said holder being provided with a throat-opening leading to the spiral groove directly at the center line of the die, substantially as described.

In testimony whereof I sign this specification in the presence of two witnesses.

JOHN LAUER.

Witnesses:

CHARLEs F. BURTON, VIRGINIA M. CLoUGH.

IOO 

